CATDOLL : CATDOLL: The place with the most silkworms in Nanchang

1. The place with the most silkworms in Nanchang

Shuangqiao Village, Huangcun Town, Hukou County, Nanchang. Shuangqiao Village, Huangcun Town, Hukou County, Nanchang has a 300-square-meter breeding room and 100 acres of mulberry forest, which is larger than other silkworm breeding bases. Nanchang was formerly known as Yuzimazhang and Hongdu. It is a prefecture-level city under the jurisdiction of Jiangxi Province, the provincial capital, and an important central city in the middle reaches of the Yangtze River in China approved by the State Council.

2. Where to raise silkworms in Chongqing

Since 2006, enterprises in six districts and counties of Chongqing, including Fengjie, Wuxi, Fuling, Qianjiang, Dianjiang and Fengdu, have successfully applied to become national sericulture bases for the "East Mulberry Westward Movement" project.

The sericulture base construction project of the national "East Mulberry Westward Movement" project - the sericulture base construction project of Mingyu Silk Textile Co., Ltd. in Tongnan County, Chongqing, has passed the expert acceptance organized by Chongqing City after more than a year of scientific construction.

Chongqing silkworm breeding is very good! !

3. What is the order of the four great inventions?

The order of the four great inventions is papermaking, compass, gunpowder, and printing. Papermaking was invented in the Western Han Dynasty, and Cai Lun of the Eastern Han Dynasty improved it. The predecessor of the compass was called Sinan, which, according to the "Ancient Mining Records", first appeared in the area of ​​Cishan during the Warring States Period. Gunpowder appeared in the Sui Dynasty and was used in military affairs in the late Tang Dynasty. Bi Sheng invented movable type printing in the Northern Song Dynasty. Woodblock printing was invented in the Tang Dynasty and was widely used in the middle and late Tang Dynasty; Bi Sheng invented movable type printing during the reign of Emperor Renzong of Song Dynasty.

The Four Great Inventions refer to the four inventions of ancient China that had a great influence on the world: papermaking, compass, gunpowder and printing. The term was first proposed by British sinologist Joseph Edkins. The Four Great Inventions played a huge role in promoting the development of ancient China's politics, economy and culture. These inventions were spread to the West through various channels and also had a great impact on the history of world civilization.

The chronological order of the four great inventions is as follows:

1. Papermaking is one of the four great inventions of China. It was invented in the Western Han Dynasty. Cai Lun improved papermaking in the first year of Yuanxing in the Eastern Han Dynasty (105 AD). China is the earliest country in the world to raise silkworms and weave silk. The ancient Chinese working people used the best silk cocoons to spin silk and weave silk. The remaining bad cocoons and diseased cocoons were used to make silk floss by floating and wadding. After floating and wadding, some residual wadding will be left on the bamboo mat. When the number of floating and wadding increases, the residual wadding on the bamboo mat will accumulate into a layer of fiber flakes, which can be peeled off after drying and can be used for writing. The by-products of this floating and wadding are not many, and they are called Hedi or Fangxu in ancient books.

2. The compass, called Sinan in ancient times, is mainly composed of a magnetic needle mounted on an axis. Under the action of the natural geomagnetic field, the magnetic needle can rotate freely and remain in the tangent direction of the magnetic meridian. The south pole of the magnetic needle points to the geographic south pole (the north pole of the magnetic field). This property can be used to identify the direction. It is often used in navigation, geodesy, travel and military affairs. There are three types of components in the invention of the compass that indicates the direction in physics, namely Sinan, compass and magnetic needle, all of which are Chinese inventions. According to the "Ancient Mining Records", it first appeared in the area of ​​Cishan during the Warring States Period. The compass is the result of the ancient Chinese working people's understanding of the magnetism of magnets in long-term practice. As one of the four great inventions of ancient China, its invention has played an immeasurable role in the development of human science and technology and civilization. In ancient China, the compass was first used to determine the direction during sacrifices, rituals, military affairs, divination and feng shui.

3. Gunpowder, as the name implies, is a medicine that can cause violent combustion by sparks, flames, etc. According to the records of "Fan Zi Ye Ran", it was already used for civilian livelihood applications in China during the Spring and Autumn Period. Fan Zi Ji Ran said that "saltpeter came from Longdao". China was the first country to invent gunpowder. During the Sui Dynasty, the ternary system of saltpeter, sulfur and charcoal gunpowder was born. Black gunpowder officially appeared in the Tang Dynasty (late 9th century). Gunpowder was invented by ancient alchemists. From the Warring States Period to the early Han Dynasty, emperors and nobles were intoxicated with the fantasy of becoming immortals and living forever, which drove some alchemists and Taoists to refine elixirs, and gradually invented it during the refining process. In the first year of Yongchun of Emperor Gaozong of the Tang Dynasty (682), alchemists in the Tang Dynasty first created the sulfur fire method, using sulfur and saltpeter, grinding them into powder, and then adding saponins (containing carbon). In the third year of Yuanhe of Emperor Xianzong of the Tang Dynasty (808), they created the fire method, using saltpeter, sulfur and Aristolochia (containing carbon) to burn together. Both formulas are a mixture of three kinds of medicine, which already have the initial ingredients of gunpowder. China invented gunpowder and first used it to make fireworks. Soon after, it was used in the military and the world's first rocket was invented. In the Song Dynasty, the military application of gunpowder in China was quite mature, making China's technology far ahead of the world.

4. Printing is one of the four great inventions of the working people in ancient China. Woodblock printing was invented in the Tang Dynasty and was widely used in the middle and late Tang Dynasty. Bi Sheng invented movable type printing during the reign of Emperor Renzong of Song Dynasty, marking the birth of movable type printing. He was the first inventor in the world, about 400 years earlier than the German Johannes Gutenberg's lead movable type printing, marking the birth of movable type printing. Printing is the forerunner of modern human civilization and has created conditions for the widespread dissemination and exchange of knowledge. Printing was successively spread to Korea, Japan, Central Asia, West Asia and Europe.

4. Nanbu County, the Capital of Silkworms in China

Just search Baidu and you will know. In English, it is said like this: City of China, batryticated silkworm, nanbu county. Please adopt my answer.

5. In which area were silkworms found in 2017?

Seventeen-year cicada, Homoptera. A species of cicada in North America that lives in caves for seventeen years before emerging. They hibernate underground for 17 years before emerging, attaching themselves to tree branches to shed their skins and then mate. Male cicadas die after mating, and female cicadas also die after laying eggs. Scientists explain that the seventeen-year cicada's peculiar lifestyle is to avoid the invasion of natural enemies and to safely continue the population, thus evolving a long and secretive life cycle.

In the summer of 1979, from Carolina to New York, countless dark insects flew out from underground every night. These were the 17-year cicadas. They flew to almost all upright targets, such as trees, power lines and buildings. After a while, the male cicadas made joyful and noisy calls to lure the female cicadas, which marked that they had lived underground for 17 years since they were born in 1962, and this year they came to the ground to hold a "wedding". This was the happiest time for other insectivores, and it was a rare feast. However, once the 17-year cicadas crawled out of the ground, their lives were very short, and all insectivores would rush to eat these 17-year cicadas. If it were not for the advantage in numbers, this cicada would probably have been extinct long ago.

Most insects live for only one year or less, and the average cicada lives for only three to nine years, although there is a thirteen-year cicada that lives underground for 17 years, earning it the title of the longest-lived insect.